On Dec. 16, 2009, I became very ill with what I believe was food poisoning. I had chills, vomiting, dizziness, faint feeling, cramps, and diarrhea. The worst of it was over within a day, and two days later I felt perfectly fine. A week after that, I again had minor vomiting, slight chills and diarrhea. I assumed that I wasn't fully recovered and what I ate the night before "irritated" the food poisoning and became sick again. I've had bouts of nausea every couple of days since.
I am currently taking birth control pills (have been for 2 years) but am not the best at remembering to take them on time. I usually forget one day and then take two the following day. More often than not, I take two pills every other day. I am sexually active and do not use condoms or the pull out method. The date of my last period was Dec. 18. I took a pregnancy test on Jan. 15 & 16, both negative.
Could I be pregnant, or could this recent sickness be messing with my cycle,even though I already had a period?

Welcome to the ehealthforum and I am glad to help you out. Since you had bouts of food poisoning recently before nausea, chances of this nausea being due to gastrointestinal infection are greater. But we cannot completely rule out the possibility of pregnancy because of your irregularity in taking the birth control pills and having unprotected intercourse during those days when you missed the pills. I would suggest that you get a serum HCG test done from a gynecologist to confirm the status of your pregnancy.

It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For an exact diagnosis, you are advised to consult your doctor. I sincerely hope that helps. Take care.

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